Getriebemotoreinrichtung zum Antrieb eines Fahrzeugzubehörs, insbesondere für Kraftfahrzeugschiebedach.

摘要

This reduction motor device comprises an output shaft (2) from the motor (1) bearing two coaxial worms (3, 4) set apart axially and having opposing pitches, two gear wheels (5, 6) placed on either side of the shaft and each interacting with one worm (3, 4), a shaft (7, 8) connected to each gear wheel and extended by a crank pin (9, 11), the latter being eccentric with respect to the corresponding shaft (7, 8) so as to be able to execute revolutions about this shaft, a component (12) bearing teeth (13) and connected to the crank pins in order to be driven during the revolution of the crank pins in a circular translatory motion of which the radius is equal to the eccentricity of the crank pins, and a member (16) equipped with an output shaft (18) connectable to the part to be driven and bearing teeth (17) which interact with those of said component, in such a way as to turn the member (16) in a ratio determined by the difference in the numbers of teeth of the two sets of teeth. This system makes it possible to house the reduction motor device in a very small space while giving it sufficient strength at very high torque values. ……